You can easily determine if your iPhone can be jailbroken or unlocked using a tool called f0recast. The f0recast utility works for both Mac OS X and Windows and lets you quickly identify if your iOS device qualifies for hacking. The tool works with iPhone 3G, iPhone 3GS, iPhone 4, and all the iPod touch models.

Obviously if it says “Yes” then you are good to go. Sometimes you’ll have both Yes and No, as you can see in the screenshot above. There are other ways to tell if your device can be jailbroken but I find using f0recast to be the easiest, particularly for novice jailbreakers.

Now what?

Once you have determined your iPhone or iPod touch can be jailbroken, you’ll want to get a jailbreak app: